Avionics bending: Engine Standby Indicator

Hello people. I finally am the owner of a very neat unit, the engine standby indicator from a B767-200 used along with CF6-80A2 engines.
I did a did power up test with 28VDC and used its internate BITE test function to chech the unit was workin as expected.
Here is the schematic of the unit

and here are few pics and a video of it running, enjoy!



 

 

 

Avionics Bending: EFIS Control Panel

Hello here we'll talk about the Captain and FO EFIS Control panels.

Those panels are mounted in the Throttle quadrant stand (P10) left and right of the lever block.

The unit is powered by 115VAC 400Hz provided by Captain Instrument Xfer bus bus for captain and FO Instrument Xfer bus for First Officer.
The power part include 5VAC lighting, DC and chassis GND and announciators BRT/DIM and TEST

The unit features 2 potentiometers that directly act on brightness for respective ADI and EHSI displays. The EHSI one is dual concentric to control also the balance of the screen as you can state from following diagrams:

 

EHSI

ADI

 



In the second picture you can note the connection between the control panel and the ADI display;
on the right you can also note the primary ARINC transmission channel which will transmit the DH set on the display as well as the range, mode and display options (ARPT,NAVAID,RTE DATA, WPT) selected on the panel.
The display mode (MAP,PLAN,VOR,ILS) is also sent out with discretes to interface to other equipemens like the VOR tuning panel as you can see in the following diagram:

 

The WXR display is set on as a discrete interfaced to the weather radar control panel located in the pedestal stand (P8)

 



Here is a video of power up test. Enjoy!

Avionics bending: ACARS Control unit

Hello guys, here is a shot and a video of ACARS control display unit mounted in P8 panel.

It works on 115V 400Hz supply and at this stage only power up can be done till I will receive the V1 ARINC device to try to test some 429 labels with it.

First pics as Always includes the wiring diagram for it:

And here is a picture of Diagnostic section.

 

As you can see, the unit has actually no inputs grounded which are the program pins and no data from the 2 data channels as no ARINC labels are sent to it. More will follow once V1 device will be here :)

 

Here is a video of power up test

 



Avionics bending: Transponder

The transponder I am using here is not from 767 but it was very cheap to get and has all functions needed, including TCAS settings.

The unit manufactured by collins features 2 connectors for 2 separate transponder unit comunication. Here is the pinout: (Thanks to my friend Curd for providing it to me)

So as you can see both functions are the same. So of our interest we have:

 

5VAC for panel backlight.

115VAC and return for unit power

Fail logic input

Air/Gnd discrete

ARINC data channel

 

Here are few shots of the unit powered up. Note when selected transponder 1 you see ---- cause I didn't power the xpdr 1 input.

 

And here is a video of it during power up test